Facile synthesis and the sensitized luminescence of europium ions-doped titanate nanowires
作者： Jianbo Yin , Xiaopeng Zhao
DOI: 10.1016/J.MATCHEMPHYS.2008.10.011
关键词:
摘要: Abstract Europium (Eu) ions-doped titanate nanowires were synthesized via a sol–gel-hydrothermal chemistry and they found to be roll multilayered trititanate-type intercalated with Eu3+ alkali ions. The average diameter was about 20 nm for in NaOH solution 10 nm KOH solution. Under ultraviolet excitation the showed bright red emission corresponding 5D0–7Fj of ions at room temperature, which attributed non-radiative energy transfer from surrounding Ti–O octahedral nanosheets central interlayer. luminescent properties influenced by type co-intercalated ions, doping degree, hydrothermal annealing temperatures. intensity ratio 5D0–7F2 5D0–7F1 Na+ higher than that K+ increased Eu3+-doping degree reached quenching level Eu/Ti = 15 mol%. efficiency temperature. However, samples high temperature led decrease emission.
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